The layer alignment is much better which results in nicer prints and higher resolution.
We’ve completely overhauled the drive system to give the optimum positioning accuracy. The entire system has been upgraded to sturdy 3/8″ diameter linear shafting. This is probably overkill, but you can trust that the axes will be sturdy. We’ve also switched to self-aligning, sintered brass bearings. These are very forgiving to DIY assembly and provide a nice, smooth motion on the steel shafts. We’ve completely replaced the Z axis with a stepper driven, cantilevered stage. Guided by two of the linear shafts, this completely eliminates any Z wobble and results in nicely aligned layers. Using a high-angle lead screw, we were able to increase the speed of the Z axis from 150mm/minute to 1, 000mm/minute. This means the layer changes are almost completely imperceptible.
